It provides an effective approach to further and systematical study of free deformation mechanism and law in tube axial compressive precision forming process.
该系统为系统深入地研究管轴压精密成形过程中无模约束自由变形机理和成形规律提供了有效的手段。
Indirect method can adjust the characteristic line equation in time based on the status of practical process, thus the forming precision can be improved.
间接法能够根据板料实际加工状态及时调整特征方程，提高了成形精度。
Springback is a common phenomenon in bending process. It has been proved that stretch bending can decrease the springback effectively, which can improve the forming precision.
回弹是弯曲成形中普遍存在的现象，实践证明采用拉弯工艺可以有效地减小回弹，从而达到提高成形精度的目的。
The mandrel(including flexible balls) is the key to improving the forming limit and forming precision in thin-walled tube NC bending process.
薄壁管数控弯曲中带芯头的柔性芯模是提高薄壁管件成形极限和成形精度的关键因素。
The cold forging of the spur gear is a complicated three-dimensional forming, and its process and precision are influenced by many factors.
直齿轮的冷锻成形，属于复杂的三维变形，多种因素影响齿轮的成形和精度。
The cold precision forging of spur gears has been researched, and the effects of relief-hole shape and forging process on the spur gears forming has been analyzed.
研究了直齿圆柱齿轮的冷精锻过程，分析了分流孔形状、成形工艺等因素对齿轮成形的影响。
At last, with the improved forming process and accuracy control operation in this thesis, series of experiments of precision gear forging have been implemented.
最后，采用本文的工艺手段和精度控制措施，进行了一系列齿轮精锻试验，并进行了小批量的生摘要产。
Put forward the near-net-sharp forming process of warm extrusion and warm stamping to manufacture the precision forgings for the thin-wall shell bodies made of 2a12 aluminium alloy.
采用温挤压制坯与温冲压成形相结合的近净成形加工技术，对壁薄且外形复杂的2a12铝合金小型外壳体进行精密成形加工。
High precision: the required precision is obtained after the shape-forming, without further process.
产品精度高：一次成型即可达到精度要求，无需后加工。
This paper introduces the roll forming process and mould design of wheel rim. The rim manufactured with the dies has higher dimensions precision, less reducing thickness.
介绍了东风汽车车轮有限公司为开展滚型车轮生产线建设而进行的车轮轮辋滚型工艺的工序设计与模具设计，生产出的轮辋尺寸精度高，圆角减薄量小。
Roller is one of the major process equipment for the flow forming. It has a significant effect to dimensional precision and apparent quality of the flow formed part.
旋轮是旋压加工中的关键工艺装备之一，对旋压工件的尺寸精度和表观质量起着至关重要的作用。
The production process includes hammer die forging, pressure forging, roll forging forming, and precision rolling-die forging composite technology.
前轴是汽车中的大型重要锻件，其生产工艺可归纳为锤上模锻、热模锻压力机上模锻、成形辊锻、精辊-模锻复合工艺等几种类型。
New types of beam-forming optics and beam-monitoring systems allow the process to be controlled and conducted with high precision and accuracy, which are essential for many medical applications.
新的射线生成光学系统和射线监控系统能够以极高的精准度控制工艺过程，这一功能特征对于许多医疗应用至关重要。
A new process for rapid tooling integrating numerical control with modern precision forming was presented.
提出一种将常规数控加工技术与精密材料成形技术结合应用于快速模具制造的新工艺。
Introduces the roll forming process and mould design of the wheel rim, the rim manufactuerd with the dies having higher dimensions precision, less reducing thickness.
介绍车轮轮辋滚压成形工艺的工序设计与模具设计。
Using finite element analysis for forming process and die structure of precision gear were introduced.
综述了有限元模拟分析技术在精密齿轮冷挤压成形与模具结构设计中的作用。
The precision forging process for the steering sector gear shaft is discussed in the paper. The principle and the path of forming of the hot extruding and upsetting are also discussed.
介绍了热挤镦加热精整汽车转向机摇臂轴精锻成形工艺，对热挤镦的成形原理及变形过程进行了分析探讨。
The fine spur gear with good size-precision and surface-roughness is obtained through two-stage hole-forming process scheme and reasonable die structure design.
选用两阶段成形工艺和合理的模具结构，制备出了具有良好尺寸精度和表面粗糙度的精密齿轮。
A description has been given to new process and important points of structure design of pre-forming die for precision forging U. S. A type of octagonal hammer with a practical die presented.
介绍了美式八角锤锤体精锻成形新工艺及其预锻模结构设计要点。
A description has been given to new process and important points of structure design of pre-forming die for precision forging U. S. A type of octagonal hammer with a practical die presented.
介绍了美式八角锤锤体精锻成形新工艺及其预锻模结构设计要点。
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